Nova Patents
US6478449B2

Led bulb in a water lamp tube

Summary by NHIP

LED Water Lamp Bulb

The invention modifies an LED bulb by punching chips and cutting pins into smooth posts or T-shapes to enable series connection. Adjacent bulbs connect via 180-degree winding where T-shaped pin ends enclose smooth posts or conductive leads.

Claim Score by NHIP

Read claim 2, the broadest

Abstract

An LED bulb in a water lamp tube is disclosed. Two light emitting chips in an LED are punched to trim the edges so that two correspondent light emitting pieces are left. A first pin and a second pin are spaced with a distance for positioning a combining plate. The two pins are cut so that the first pin is a smooth post; while a distal end of the second pin is extended to two sides like a T shape. By the aforesaid structure, the second pin of a bulb encloses the first pin of another bulb through 180 degrees; by repeating the process, many bulbs are connected in series so that the bulbs are conductive to each other. Alternatively, the first pin is extended to two sides like a T shape; while a distal end of the second pin is extended to two sides like a T shape. A lead is used to connect two bulbs and two ends of the conductive leads are enclosed by the T shape pins of second bulbs through 180 degrees. As a result, the light emitted is stable and the lifetime will be prolonged.

US6478449B2, drawing sheet 1
Sheet 1 of 8

Term

Term ended

Expired 11 April 2021, 5.5 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

2 claims: 2 independent, 0 dependent

  1. 1
    An LED bulb in a water lamp tube, wherein two light emitting chips in an LED are punched to trim the edges so that two correspondent light emitting pieces are left;a first pin and a second pin are spaced with a distance;two pins are cut so that the first pin is a smooth post;while a distal end of the second pin is extended to two sides like a T shape;wherein by the aforesaid structure, the second pin of a bulb encloses the first pin of another bulb through a winding of 180 degrees by the two sides extended from the distal end of the second pin;by repeating the process, many bulbs are connected in series so that the bulbs are conductive to each other.
  2. 2
    Broadest claimClaim Score 64, broad(NHIP)An LED bulb in a water lamp tube, wherein two light emitting chips in an LED are punched to trim the edges so that two correspondent light emitting pieces are left;a first pin and a second pin are spaced with a distance;two pins are cut so that the first pin is extended to two sides like a T shape;while a distal end of the second pin is also extended to two sides like a T shape;wherein a lead is bused to connect two bulbs and two ends of the conductive leads are enclosed by each adjacent side of two bulbs at the T shape portion of the second pin wind through 180 degrees.